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  HES Series Transformer Tester

HES-1W Low-Current CT Tester (Bridge)

Time:2018-5-16 10:37:28

Product picture:

HES-1W Low-Current CT Tester (Bridge)

Product details:

Product model:


Display model:


Measure item:

Ratio errors & Phase errors of the low-Current CT

Rated current:

1mA, 2mA, 5mA, 20mA, 50mA


0.5, 1, 1.5, 2, 3

Accuracy class:


Operation range:




Ratio error range:

±0.0001% ~ ±19.99%Three positions: 1.999‰, 19.99‰, 199.9‰

Minimum resolution0.0001%.

Phase error range:

0.01' ~ ±900'Three positions: 9.00', 90.0', 900'

Minimum resolution: 0.01'

Alarm Function:

Provided the sound & light alarm function when the polarity abnormal or ratio inconsistent.

Provided load for object CT:

0Ω, 5Ω, 10Ω, 20Ω, 30Ω, 50Ω,100Ω, 200Ω, 250Ω, 500Ω (COSφ=1.0)

Input load on standard side:

10Ω (COSφ=1.0)

Communication Interface:

Provided the RS232 serial communication interface

Power supply:

AC 220V±10%

Power consumption:

< 20VA